The composition of native microflora of sour crude oil of Ombiyskoe field of Republic of Tatarstan was investigated in the periodic aerobic cultivation process. The hydrocarbon-oxidizing bacteria Acinetobacter sp., Pseudomonas sp., Bacillus sp., Micrococcus sp. were detected. The oil sulfur-oxidizing bacteria were isolated (about 10% of the total number of aerobic microorganisms). These bacteria were characterized by low oil components oxidation rate: the sulfates concentration was about 30 mg/l after 20 days of periodic cultivation.
высокосернистая нефть, микроорганизмы, восстановленные соединения серы, sour crude oil, microorganisms, reduced sulfur compounds
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